AS27321
Internet Systems Consortium, Inc.
Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Isp allocation +5
- Trust score 70 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
About Internet Systems Consortium
Internet Systems Consortium, Inc., also known as ISC, is an American non-profit corporation that supports the infrastructure of the universal, self-organizing Internet by developing and maintaining core production-quality software, protocols, and operations. ISC has developed several key Internet technologies that enable the global Internet, including: BIND, ISC DHCP and Kea.
Network profile
Source: PeeringDB →Present at 3 internet exchanges: SFMIX, FCIX, ARIX: Primary
热门 CIDR 范围
| CIDR | IP 地址 | PTR Density | 组织 | 国家 | State | City |
|---|---|---|---|---|---|---|
| 149.20.2.0/23 | 512 |
26.2%
|
Internet Systems Consortium, Inc. | US | — | — |
| 192.158.248.0/23 | 512 |
6.1%
|
Internet Systems Consortium, Inc. | US | — | — |
| 149.20.4.0/24 | 256 |
50.0%
|
Internet Systems Consortium, Inc. | US | — | — |
| 149.20.57.0/24 | 256 |
4.7%
|
Internet Systems Consortium, Inc. | US | — | — |
| 149.20.66.0/24 | 256 |
0.0%
|
Internet Systems Consortium, Inc. | US | — | — |
BGP 公告前缀
实时 BGP 异常 →前缀 AS27321 实际源自 BGP，通过我们的 RIPE RIS 收集器观测。此实时路由视图可能与上述注册分配有所不同。
| Prefix | 公告样本 | 最后观测 |
|---|---|---|
| 149.20.66.0/24 | 8,405 | 2026-07-26 06:06:09 |
| 149.20.57.0/24 | 8,355 | 2026-07-26 06:06:09 |
| 192.158.248.0/24 | 8,332 | 2026-07-26 06:06:09 |
| 192.158.249.0/24 | 8,317 | 2026-07-26 06:06:09 |
| 149.20.2.0/24 | 8,296 | 2026-07-26 06:06:09 |
| 149.20.3.0/24 | 8,296 | 2026-07-26 06:06:09 |
| 149.20.4.0/24 | 8,283 | 2026-07-26 06:06:09 |
| 149.20.0.0/24 | 1,806 | 2026-07-26 06:06:09 |
Frequently Asked Questions
什么是 AS27321？
AS27321 是分配给 Internet Systems Consortium, Inc. 的自治系统编号 (Autonomous System Number)。ASN 标识一个控制特定 IP 地址集的网络，并通过 BGP（边界网关协议）确定流量如何在互联网上传输。
AS27321 公告了多少个 IP 地址？
AS27321 公告了 1.8K 个 IPv4 地址，分布在 5 个路由 CIDR 前缀中。 该网络在 United States 注册。
谁运营 AS27321？
AS27321 由 Internet Systems Consortium, Inc. 运营。 该组织总部位于 United States。 您可以在组织页面查看所有 IP 范围和相关 ASNs。
AS27321 在哪个国家注册？
AS27321 在 United States 注册。这表明网络运营商的总部所在地，尽管其公告的 IP 地址可能服务全球用户。
